Potential security issue in src/tool_urlglob.c: Unchecked return from initialization function

[monocle-ai]

What is a Conditionally Uninitialized Variable? The return value of a function that is potentially used to initialize a local variable is not checked. Therefore, reading the local variable may result in undefined behavior.

1 instance of this defect were found in the following locations:

Instance 1 File : src/tool_urlglob.c Function: strtoul https://github.com/siva-msft/curl/blob/3c26766b1c420f0920e90b4453d14e7b5fc01cdf/src/tool_urlglob.c#L204 Code extract:

      if(end_c == ':') {
        char *endp;
        errno = 0;
        step = strtoul(&pattern[4], &endp, 10); <------ HERE
        if(errno || &pattern[4] == endp || *endp != ']')
          step = 0;